/*************************************************************************************
This file is a part of CrashRpt library.
Copyright (c) 2003-2013 The CrashRpt project authors. All Rights Reserved.

Use of this source code is governed by a BSD-style license
that can be found in the License.txt file in the root of the source
tree. All contributing project authors may
be found in the Authors.txt file in the root of the source tree.
***************************************************************************************/

/*
 *	This is the C++ implementation of the MD5 Message-Digest
 *	Algorithm desrcipted in RFC 1321.
 *	I translated the C code from this RFC to C++.
 *	There is no warranty.
 *
 *	Feb. 12. 2005
 *	Benjamin Grüdelbach
 */

/*
 * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
 * rights reserved.
 *
 * License to copy and use this software is granted provided that it
 * is identified as the "RSA Data Security, Inc. MD5 Message-Digest
 * Algorithm" in all material mentioning or referencing this software
 * or this function.
 *
 * License is also granted to make and use derivative works provided
 * that such works are identified as "derived from the RSA Data
 * Security, Inc. MD5 Message-Digest Algorithm" in all material
 * mentioning or referencing the derived work.
 *
 * RSA Data Security, Inc. makes no representations concerning either
 * the merchantability of this software or the suitability of this
 * software for any particular purpose. It is provided "as is"
 * without express or implied warranty of any kind.
 *
 * These notices must be retained in any copies of any part of this
 * documentation and/or software.
 */

//----------------------------------------------------------------------
//include protection
#ifndef MD5_H
#define MD5_H

//----------------------------------------------------------------------
//STL includes
#include <string>

//----------------------------------------------------------------------
//typedefs
typedef unsigned char *POINTER;

/*
 * MD5 context.
 */
typedef struct
{
	unsigned long int state[4];   	      /* state (ABCD) */
	unsigned long int count[2]; 	      /* number of bits, modulo 2^64 (lsb first) */
	unsigned char buffer[64];	      /* input buffer */
} MD5_CTX;

/*
 * MD5 class
 */
class MD5
{

	private:

		void MD5Transform (unsigned long int state[4], unsigned char block[64]);
		void Encode (unsigned char*, unsigned long int*, unsigned int);
		void Decode (unsigned long int*, unsigned char*, unsigned int);
		void MD5_memcpy (POINTER, POINTER, unsigned int);
		void MD5_memset (POINTER, int, unsigned int);

	public:

		void MD5Init (MD5_CTX*);
		void MD5Update (MD5_CTX*, unsigned char*, unsigned int);
		void MD5Final (unsigned char [16], MD5_CTX*);

	MD5(){};
};

//----------------------------------------------------------------------
//End of include protection
#endif

/*
 * EOF
 */
